private static bool TryEnableProjFSOptionalFeature(ITracer tracer, PhysicalFileSystem fileSystem)
{
EventMetadata metadata = CreateEventMetadata();
const int ProjFSNotAnOptionalFeature = 2;
const int ProjFSEnabled = 3;
const int ProjFSDisabled = 4;
ProcessResult getOptionalFeatureResult = CallPowershellCommand(
"$var=(Get-WindowsOptionalFeature -Online -FeatureName " + OptionalFeatureName + "); if($var -eq $null){exit " +
ProjFSNotAnOptionalFeature + "}else{if($var.State -eq 'Enabled'){exit " + ProjFSEnabled + "}else{exit " + ProjFSDisabled + "}}");
bool projFSEnabled = false;
switch (getOptionalFeatureResult.ExitCode)
{
case ProjFSNotAnOptionalFeature:
tracer.RelatedError($"{nameof(TryEnableProjFSOptionalFeature)}: {OptionalFeatureName} optional feature is missing");
break;
case ProjFSEnabled:
tracer.RelatedEvent(
EventLevel.Informational,
$"{nameof(TryEnableProjFSOptionalFeature)}_ClientProjFSAlreadyEnabled",
metadata,
Keywords.Network);
projFSEnabled = true;
break;
case ProjFSDisabled:
ProcessResult enableOptionalFeatureResult = CallPowershellCommand("try {Enable-WindowsOptionalFeature -Online -FeatureName " + OptionalFeatureName + " -NoRestart}catch{exit 1}");
if (enableOptionalFeatureResult.ExitCode == 0)
{
metadata.Add(TracingConstants.MessageKey.InfoMessage, "Enabled ProjFS optional feature");
tracer.RelatedEvent(EventLevel.Informational, $"{nameof(TryEnableProjFSOptionalFeature)}_ClientProjFSDisabled", metadata);
projFSEnabled = true;
break;
}
metadata.Add("enableOptionalFeatureResult.ExitCode", enableOptionalFeatureResult.ExitCode);
metadata.Add("enableOptionalFeatureResult.Output", enableOptionalFeatureResult.Output);
metadata.Add("enableOptionalFeatureResult.Errors", enableOptionalFeatureResult.Errors);
tracer.RelatedError(metadata, $"{nameof(TryEnableProjFSOptionalFeature)}: Failed to enable optional feature");
break;
default:
metadata.Add("getOptionalFeatureResult.ExitCode", getOptionalFeatureResult.ExitCode);
metadata.Add("getOptionalFeatureResult.Output", getOptionalFeatureResult.Output);
metadata.Add("getOptionalFeatureResult.Errors", getOptionalFeatureResult.Errors);
tracer.RelatedError(metadata, $"{nameof(TryEnableProjFSOptionalFeature)}: Unexpected result");
break;
}
if (projFSEnabled)
{
if (IsNativeLibInstalled(tracer, fileSystem))
{
return(true);
}
tracer.RelatedError($"{nameof(TryEnableProjFSOptionalFeature)}: {OptionalFeatureName} enabled, but native ProjFS library is not on path");
}
return(false);
}
/// <summary>
/// Attempts to delete a file
/// </summary>
/// <param name="fileSystem">PhysicalFileSystem</param>
/// <param name="path">Path of file to delete</param>
/// <returns>True if the delete succeed, and false otherwise</returns>
/// <remarks>The files attributes will be set to Normal before deleting the file</remarks>
public static bool TryDeleteFile(this PhysicalFileSystem fileSystem, string path)
{
Exception exception;
return(TryDeleteFile(fileSystem, path, out exception));
}
private static bool TryCopyNativeLibToAppDirectory(ITracer tracer, PhysicalFileSystem fileSystem, string gvfsAppDirectory)
{
string installFilePath;
string appFilePath;
GetNativeLibPaths(gvfsAppDirectory, out installFilePath, out appFilePath);
EventMetadata pathMetadata = CreateEventMetadata();
pathMetadata.Add(nameof(gvfsAppDirectory), gvfsAppDirectory);
pathMetadata.Add(nameof(installFilePath), installFilePath);
pathMetadata.Add(nameof(appFilePath), appFilePath);
if (fileSystem.FileExists(installFilePath))
{
tracer.RelatedEvent(EventLevel.Informational, $"{nameof(TryCopyNativeLibToAppDirectory)}_CopyingNativeLib", pathMetadata);
try
{
fileSystem.CopyFile(installFilePath, appFilePath, overwrite: true);
try
{
Common.NativeMethods.FlushFileBuffers(appFilePath);
}
catch (Win32Exception e)
{
EventMetadata metadata = CreateEventMetadata(e);
metadata.Add(nameof(appFilePath), appFilePath);
metadata.Add(nameof(installFilePath), installFilePath);
tracer.RelatedWarning(metadata, $"{nameof(TryCopyNativeLibToAppDirectory)}: Win32Exception while trying to flush file buffers", Keywords.Telemetry);
}
}
catch (UnauthorizedAccessException e)
{
EventMetadata metadata = CreateEventMetadata(e);
tracer.RelatedError(metadata, $"{nameof(TryCopyNativeLibToAppDirectory)}: UnauthorizedAccessException caught while trying to copy native lib");
return(false);
}
catch (DirectoryNotFoundException e)
{
EventMetadata metadata = CreateEventMetadata(e);
tracer.RelatedError(metadata, $"{nameof(TryCopyNativeLibToAppDirectory)}: DirectoryNotFoundException caught while trying to copy native lib");
return(false);
}
catch (FileNotFoundException e)
{
EventMetadata metadata = CreateEventMetadata(e);
tracer.RelatedError(metadata, $"{nameof(TryCopyNativeLibToAppDirectory)}: FileNotFoundException caught while trying to copy native lib");
return(false);
}
catch (IOException e)
{
EventMetadata metadata = CreateEventMetadata(e);
tracer.RelatedWarning(metadata, $"{nameof(TryCopyNativeLibToAppDirectory)}: IOException caught while trying to copy native lib");
if (fileSystem.FileExists(appFilePath))
{
tracer.RelatedWarning(
CreateEventMetadata(),
"Could not copy native lib to app directory, but file already exists, continuing with install",
Keywords.Telemetry);
}
else
{
tracer.RelatedError($"{nameof(TryCopyNativeLibToAppDirectory)}: Failed to copy native lib to app directory");
return(false);
}
}
}
else
{
tracer.RelatedError(pathMetadata, $"{nameof(TryCopyNativeLibToAppDirectory)}: Native lib does not exist in install directory");
return(false);
}
return(true);
}